At KMART:
Buy a Virgin Recharge Voucher for $30 first; and you can purchase a Virgin Broadband modem for $99 (instead of $129).
Must be made in same transaction on the cash register.
The $30 Recharge Voucher can be used for EITHER 1GB Usage on a Virgin BROADBAND service; or as a normal $30 recharge for a Virgin MOBILE voice service.
(Virgin Mobile & Virgin Broadband use exactly the same vouchers. Virgin's systems are smart enough to know whether you are a Mobile or Broadband customer, when you actually Recharge.)
Virgin's Customer Support is 100% based in Manilla, Phillipines.
After you use up the $30/1GB, switch to Internode (which also uses Optus) at $40/5GB.